My Duster is under the knife....TKX going in

What kind of sure grip? A clutch or cone unit? Either way, you will benefit from finding a large open parking lot and doing a series of figure 8s. That will break in the clutches or cones. If it's a new unit, it will be very tight until it's broken in. In a light car like an A body, it will drag a tire a little around a turn.